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High 8.7Published Oct 29, 2026

CVE-2025-62841Hard-coded Cryptographic Key #2

Updated under an hour ago ()

Does this affect you?

It affects QNAP Systems Inc. HBS 3 Hybrid Backup Sync and 1 other product. Add what you run to find out whether that includes you.

No exploitation reported and no EPSS estimate yet.

An use of hard-coded cryptographic key vulnerability has been reported to affect HBS 3 Hybrid Backup Sync and Hybrid Backup Sync. If exploited, the vulnerability could allow remote attackers to compromise the security of the system. We have already fixed the vulnerability in the following version: HBS 3 Hybrid Backup Sync 26.4.0.521 and later Hybrid Backup Sync 26.4.0.521 and later Hybrid Backup Sync 26.4.1.563 and later

CVSS
8.7 HIGH (v4.0, CNA)CVSS:4.0/AV:A/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N
Weakness (CWE)
CWE-321
Known exploited
Not in CISA's KEV catalog
EPSS (exploitation in the next 30 days)
Not loaded for this CVE
Assigned by
qnap
NVD analysis
Awaiting Analysis
Record last updated
Oct 29, 2026
First seen by InfoSec Signals
Oct 29, 2026

Affected products

Affected products
QNAP Systems Inc. HBS 3 Hybrid Backup Sync
qnap_systems:hbs_3_hybrid_backup_sync (from the name)
from 26.4.x before 26.4.0.521
CNA record
QNAP Systems Inc. Hybrid Backup Sync
qnap_systems:hybrid_backup_sync (from the name)
from 26.4.x before 26.4.0.521; from 26.4.x before 26.4.1.563
CNA record

References

References

The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.

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